EP 1646790 A4 20111109 - PUMP VALVE WITH CONTROLLED STROKE

Title (en)

PUMP VALVE WITH CONTROLLED STROKE

Title (de)

PUMPENVENTIL MIT GESTEUERTEM HUB

Title (fr)

VANNE DE POMPE A COURSE COMMANDEE

Publication

EP 1646790 A4 20111109 (EN)

Application

EP 04779068 A 20040723

Priority

US 2004023833 W 20040723
US 48942503 P 20030723

Abstract (en)

[origin: WO2005010363A2] A valve assembly for a pump includes a pump chamber and a pump head having complementary recesses formed therein which cooperate to define a valve compartment including a pocket and an opposed seat. A flexible valve element is disposed between the recesses and adapted to move between a closed position against the seat which prevents fluid flow and an open position away from the valve seat which permits fluid flow. The dimensions of the valve compartment are selected to limit the movement of the valve element in the open position, which increases the pump efficiency and prevents damage to the valve element and/or valve overlap.

IPC 8 full level

F04B 39/10 (2006.01); F04B 39/14 (2006.01); F04B 53/10 (2006.01); F16K 7/17 (2006.01); F16K 15/14 (2006.01); F16K 15/16 (2006.01)

IPC 8 main group level

F04B (2006.01)

CPC (source: EP US)

F04B 39/10 (2013.01 - EP US); F04B 39/104 (2013.01 - EP US); F04B 39/1066 (2013.01 - EP US); F04B 39/1073 (2013.01 - EP US); F04B 39/14 (2013.01 - EP US); F04B 53/1047 (2013.01 - EP US); F04B 53/1062 (2013.01 - EP US); F04B 53/1085 (2013.01 - EP US); F04B 53/1087 (2013.01 - EP US); F16K 7/17 (2013.01 - EP US); F16K 15/144 (2013.01 - EP US); Y10T 137/7887 (2015.04 - EP US); Y10T 137/7892 (2015.04 - EP US)

Citation (search report)

[X] US 5785508 A 19980728 - BOLT ERWIN [CH]
[X] EP 0247824 A2 19871202 - PACESETTER INFUSION LTD [US]
[X] EP 0934757 A2 19990811 - 3BY LIMITED [IL]
[A] US 2497906 A 19500221 - PETERS GEORGE E, et al
See references of WO 2005010363A2

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2005010363 A2 20050203; WO 2005010363 A3 20050714; WO 2005010363 B1 20050901; CN 100436817 C 20081126; CN 1826465 A 20060830; EP 1646790 A2 20060419; EP 1646790 A4 20111109; EP 1646790 B1 20161019; JP 2006528742 A 20061221; US 2006177330 A1 20060810; US 7762796 B2 20100727

DOCDB simple family (application)

US 2004023833 W 20040723; CN 200480021291 A 20040723; EP 04779068 A 20040723; JP 2006521283 A 20040723; US 56525604 A 20040723